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thermocouple temperature controller

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rocky001

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hi,
I have designed a heater for my cryostat. The heater prevents frosting at the place where the helium flows. If the frosting occurs then the helium flow would not be there and low temp. would not be reached.(~ 3K). The power supply for the heater is D.C. power supply of 30 volts and 10 amp. Now I want to design the temp. controller or temp. monitor (thermocouple based). can anyone please help me with the circuit of the controller or monitor? It should also display the temp. on lcd display. The temp. limit can be from 0 deg celcius to 1200 deg celcius (can be negotiable).

Regards,
Srinivas
 

FvM

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How about buying a ready-made controller from a catalog distributor? It costs less than e.g. a small bottle of helium.
 

rocky001

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well i could have done that. but since it is a project i cannot do that
 

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